Hi there,
I found these today on ebay: http://www.ebay.com/itm/32-Bottle-Wine-Cooler-Refrigerator-Cellar-Electronic-Adjustable-/330799833802?hash=item4d0534e2ca&pt=LH_DefaultDomain_0&quantity=1&autorefresh=true
They look as if they would be perfect for a 1-bucket fermentation chamber. But...